Fix illegal memory access parsing corrupt DWARF information.
PR 29936
* dwarf2.c (concat_filename): Fix check for a directory index off
the end of the directory table.
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 81227dc..49e18c9 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,9 @@
+2022-12-23 Nick Clifton <nickc@redhat.com>
+
+ PR 29936
+ * dwarf2.c (concat_filename): Fix check for a directory index off
+ the end of the directory table.
+
2022-12-21 Nick Clifton <nickc@redhat.com>
* po/ro.po: Updated Romanian translation.
diff --git a/bfd/dwarf2.c b/bfd/dwarf2.c
index b608afb..88335cb 100644
--- a/bfd/dwarf2.c
+++ b/bfd/dwarf2.c
@@ -2047,7 +2047,8 @@
if (table->files[file].dir
/* PR 17512: file: 0317e960. */
- && table->files[file].dir <= table->num_dirs
+ && table->files[file].dir
+ <= (table->use_dir_and_file_0 ? table->num_dirs - 1 : table->num_dirs)
/* PR 17512: file: 7f3d2e4b. */
&& table->dirs != NULL)
{
